osha conveyor safety 1910 osha conveyor safety 1910

(ii) Air-lift hammers shall have an air shutoff valve as required in paragraph (d)(2) of this section. (ii) In powerplants or power-development rooms, a guardrail may be used in lieu of the guard required by subdivision (i) of this subparagraph. 1910.211 Definitions. It shall be the responsibility of any person reconstructing, or modifying a mechanical power press to do so in accordance with paragraph (b) of this section. (3) Manually operated controls. If made of metal shapes or bars, their section shall be equal in strength to that of one and one-half (112) by one and one-half (112) by three-sixteenths (316) inch angle iron. This is an automated process for 1910.215 Abrasive wheel machinery. (vi) The adjustable barrier guard shall be securely attached to the press bed, bolster plate, or die shoe, and shall be adjusted and operated in conformity with Table O-10 and the requirements of this subparagraph. (ii) Belt shifter and clutch handles shall be rounded and be located as far as possible from danger of accidental contact, but within easy reach of the operator. 3. The route followed by the oiler is protected in such manner as to prevent accident. Preliminary disapproval. 2. (E) A system or visual check shall be made to verify correct counterbalance adjustment for die weight according to the press manufacturer's instructions, when a press is equipped with a slide counterbalance system. 1910.106 Flammable liquids. Conveyors are safe when used correctly, but they can be dangerous, and even deadly, if workers fail to follow safety procedures when working on or around them. Overhead horizontal belts, with lower parts seven (7) feet or less from the floor or platform, shall be guarded on sides and bottom in accordance with paragraph (o)(3) of this section. (i) Wood guards may be used in the woodworking and chemical industries, in industries where the presence of fumes or where manufacturing conditions would cause the rapid deterioration of metal guards; also in construction work and in locations outdoors where extreme cold or extreme heat make metal guards and railings undesirable. switch to drafting.ecfr.gov. All exposed parts of horizontal shafting seven (7) feet or less from floor or working platform, excepting runways used exclusively for oiling, or running adjustments, shall be protected by a stationary casing enclosing shafting completely or by a trough enclosing sides and top or sides and bottom of shafting as location requires. The validating laboratory, if a separate organization from the validation organization, shall assign technical responsibility for the validation of PSDI certification to a Technical Director. 1910.1000 Air contaminants. (4) Type 11 flaring cup wheels mean wheels having double diameter dimensions D and J, and in addition have thickness, hole size, rim and back thickness dimensions. The Occupational Safety and Health Administration's (OSHA's) requirements for machine guarding are found in 29 Code of Federal Regulations (CFR) 1910 Subpart O, Machinery and Machine Guarding as detailed below; 1910.211 Definitions; 1910.212 General requirements for all machines; . It should be noted that this does not require redundancy for press components such as structural elements, clutch/brake mechanisms, plates, etc., for which adequate reliability may be achieved by proper design, maintenance, and inspection. Expanded metal, sheet or perforated metal, and wire mesh shall be securely fastened to frame. Steel castings (min. (b) Portable wheels with threaded inserts or projecting studs. All mills irrespective of the size of the rolls or their arrangement (individually or group-driven) shall be stopped within a distance, as measured in inches of surface travel, not greater than 112 percent of the peripheral no-load surface speeds of the respective rolls as determined in feet per minute. 1910.241 Definitions. (iii) Individual sensing fields of presence sensing devices used to initiate strokes in the PSDI mode shall cover only one side of the press. The validation organization or validating laboratory shall have a follow-up system for inspecting or testing manufacturer's production of design certified/validated PSDI safety system components and subassemblies where deemed appropriate by the validation organization. Hand feeding tools are not a point of operation guard or protection device and shall not be used in lieu of the guards or devices required in this section. (2) Arbors and mandrels shall be constructed so as to have firm and secure bearing and be free from play. (7) Lubrication. 1910.214 Cooperage machinery. (A) Presence sensing devices used as supplemental safeguarding shall not initiate a press stroke, and shall conform to the requirements of paragraph (c)(3)(iii) and other applicable provisions of this section, except that the safety distance shall comply with paragraph (h)(9)(v) of this section. The bottom of the guard shall come to within three-eighths inch of a plane formed by bottom or contact face of the feed roll where it touches the stock. (1) Point of operations means that point at which cutting, shaping, boring, or forming is accomplished upon the stock. See Table O-10. (5) Grinding. (2) Shutoff valve. Nor would it be necessary to repeat these tests in the case of modifications where determined by the manufacturer and validated by the third-party validation organization to be equivalent by similarity analysis. 1910.334 Use of equipment. (iii) Following a die change, the safety distance, the proper application of supplemental safeguarding, and the slide counterbalance adjustment (if the press is equipped with a counterbalance) shall be checked and maintained by authorized persons whose qualifications include knowledge of the safety distance, supplemental safeguarding requirements, and the manufacturer's specifications for counterbalance adjustment. EN 618:2002+A1:2010, Continuous handling equipment and systems - Safety and EMC requirements for equipment for mechanical handling of bulk materials except fixed belt conveyors EN 619:2002+A1:2010, Continuous handling equipment and systems - Safety and EMC requirements for equipment for mechanical handling of unit loads The manufacturer shall submit to the validation organization the technical analysis such as Hazard Analysis, Failure Mode and Effect Analysis, Stress Analysis, Component and Material Selection Analysis, Fluid Compatability, and/or other analyses which may be necessary to demonstrate, compliance with the following requirements: Sections 1910.217(h)(8) (i) and (ii); (h)(2) (ii) and (iii); (h)(3)(i) (A) and (C), and (ii); (h)(5) (i), (ii) and (iii); (h)(6) (i), (iii), (iv), (vi), (vii), (viii), (ix), (x), (xi), (xiii), (xiv), (xv), (xvi), and (xvii); (h)(7) (i) and (ii); (h)(9) (iv), (v), (viii), (ix) and (x); (h)(10) (i) and (ii). [39 FR 23502, June 27, 1974, as amended at 43 FR 49750, Oct. 24, 1978; 43 FR 51760; Nov. 7, 1978; 49 FR 5323, Feb. 10, 1984; 61 FR 9240, Mar. 3. The angular exposure of the grinding wheel periphery and sides for safety guards used on machines known as bench and floor stands should not exceed 90 or one-fourth of the periphery. The vertical clearance in passageways between the floor and power transmission beams, ceiling, or any other objects, is not less than five feet six inches (5 ft. 6 in.). Blanking of the sensing field is not permitted. (40) Jog means an intermittent motion imparted to the slide by momentary operation of the drive motor, after the clutch is engaged with the flywheel at rest. However,current OSHA regulations on the control of hazardous energy sources (lockout/tagout)[29 CFR 1910.147],and machine guarding [29 CFR Part 1910.212 ] are applicable to these types of equipment. If they sound cracked (dead), they shall not be used. Unless a 6-foot 6-inch headroom clearance is provided, employees shall not be permitted to pass under conveyors. Subscribe to: Changes in Title 29 :: Subtitle B :: Chapter XVII :: Part 1910 :: Subpart O. (1) This section covers all types and shapes of power-transmission belts, except the following when operating at two hundred and fifty (250) feet per minute or less: (i) Flat belts one (1) inch or less in width. Such stopping distances shall be subject to engineering determination. (4) Guide post hazard. The stop control shall override any other control, and reactuation of the clutch shall require use of the operating (tripping) means which has been selected. (4) Clutch means the coupling mechanism used on a mechanical power press to couple the flywheel to the crankshaft, either directly or through a gear train. Subpart GOccupational Health and Environmental Control. (46) Press means a mechanically powered machine that shears, punches, forms or assembles metal or other material by means of cutting, shaping, or combination dies attached to slides. All revolving collars, including split collars, shall be cylindrical, and screws or bolts used in collars shall not project beyond the largest periphery of the collar. 2. (iv) Air piping shall conform to the specifications of the ANSI B31.1.0-1967, Power Piping with Addenda issued before April 28, 1971, which is incorporated by reference as specified in 1910.6. (ii) The ram shall be blocked with a material the strength of which shall meet or exceed the specifications or dimensions shown in Table O-11. (11) Rivet making machines mean the same as upsetters and boltheaders when producing rivets with stock diameter of 1-inch or more. (2) Open framehammers (or blacksmith hammers) mean hammers used primarily for the shaping of forgings by means of impact with flat dies. Steam or air piping shall conform to the specifications of American National Standard ANSI B31.1.0-1967, Power Piping with Addenda issued before April 28, 1971, which is incorporated by reference as specified in 1910.6. After installation of point of operation guards and before a job is released for operation a check should be made to verify that the guard will prevent the operator's hands from reaching the point of operation. 1910.6 Incorporation by reference. (iv) Cylinders, cups, or segmental wheels that are mounted in chucks. (4) This section covers the principal features with which power transmission safeguards shall comply. (ii) Type 27 and Type 28 wheels, because of their shape and usage, require specially designed adaptors. Since that time there have been several revisions, 1987, 1990, 1993, an Addenda in 1992, 2003, 2009, 2012, and 2015. (iv) The pull-out device shall protect the operator as specified in paragraph (c)(3)(i)(b) of this section, and shall include attachments for each of the operator's hands. 1910.1 Purpose and scope. a. (13) Revolving double arbor saws shall be fully guarded in accordance with all the requirements for circular crosscut saws or with all the requirements for circular ripsaws, according to the kind of saws mounted on the arbors. (i) Cutting-off wheels, Types 1 and 27A (see paragraphs (c)(1) (ii) and (iii) of this section). (ii) The spindle end, nut, and outer flange may be exposed on machines designed as portable saws. (vii) Means used to actuate press stroke (foot trip, foot control, hand trip, hand control, or other). The use in the formula of twice the stopping time increase, Tm, allowed by the brake monitor for brake wear allows for greater increases in the downstroke stopping time than occur in normal stopping time at the top of the stroke. In powerplants or power-development rooms, a guardrail may be used in lieu of the guard required by subdivision (i) of this subparagraph. Solid material used for this purpose shall be of an equivalent strength and firmness. The validation organization representative shall witness at least one set of each of these tests. 1910.18 Changes in established Federal standards. All points not readily accessible shall have oil feed tubes if lubricant is to be added while machinery is in motion. Equip.) (i) Guards for horizontal overhead belts shall run the entire length of the belt and follow the line of the pulley to the ceiling or be carried to the nearest wall, thus enclosing the belt effectively. 1. (a) All guards shall be rigidly braced every three (3) feet or fractional part of their height to some fixed part of machinery or building structure. Standard conditions shall be secured by the use of the following materials. ), (7) Automatic snagging machines. c. Function completion means for, electrical, electromechanical and electronic devices, when the circuit produces a change of state in the output element of the device. 1910.1028 Benzene. 1910.1013 beta-Propiolactone. (2) Cutting heads on wood-turning lathes, whether rotating or not, shall be covered as completely as possible by hoods or shields. Appendix E to Subpart L of Part 1910Test Methods for Protective Clothing, Subpart MCompressed Gas and Compressed Air Equipment. (4) Gravity hammers mean a class of forging hammer wherein energy for forging is obtained by the mass and velocity of a freely falling ram and the attached upper die. In the second stage, the OSHA-recognized third-party validation organization validates that the PSDI safety system meets the requirements of 29 CFR 1910.217 (a) through (h) and this appendix A and the manufacturer's certification by reviewing the manufacturer's design and test data and performing any additional reviews required by this standard or which it believes appropriate. The manufacturer shall certify and the OSHA-recognized third-party validation organization shall validate that: (a) The design of components, subsystems, software and assemblies meets OSHA performance requirements and are ready for the intended use; and. (4) Hangers. (ii) A pad with a nonslip contact area shall be firmly attached to the pedal. 1910.139 [Reserved] 29 U.S.C. [Reserved] (3) Mill means a machine consisting of two adjacent metal rolls, set horizontally, which revolve in opposite directions (i.e., toward each other as viewed from above) used for the mechanical working of rubber and plastics compounds. (17) Two hand control device means a two hand trip that further requires concurrent pressure from both hands of the operator during a substantial part of the die-closing portion of the stroke of the press. (A) The manufacturer's recommended test procedures for checking operation of the presence sensing device. 1910.37 Maintenance, safeguards, and operational features for exit routes. Search & Navigation The requirement in paragraph (h)(3)(i)(C) is intended to prevent degradation in stoping speed from higher air pressure. 1910.103 Hydrogen. A positive-type lockout device for disconnecting the power to the shear shall be provided. will also bring you to search results. An acceptable method for interlocking supplemental guards as required by paragraph (h)(6)(xiii) would be to incorporate the supplemental guard and the PSDI presence sensing device into a hinged arrangement in which the alignment of the presence sensing device serves, in effect, as the interlock. As a All metal should be free from burrs and sharp edges. (vi) Equipment shall be kept clean, particularly from accumulations of yellow lead oxide. (1) The feed rolls of roll type glue spreaders shall be guarded by a semicylindrical guard. (3) Conveyors. The following terms and conditions shall be part of every recognition: a. Types 27 and 28 wheels, because of their shape, require specially designed adaptors. (iii) The pedal return spring(s) shall be of the compression type, operating on a rod or guided within a hole or tube, or designed to prevent interleaving of spring coils in event of breakage. (ii) The inside diameter of the band shall not be more than 1 inch larger than the outside diameter of the wheel, and shall be mounted as nearly concentric with the wheel as practicable. A safety trip control shall be provided in front and in back of each mill. (1) Inspection and maintenance records. The safety trip control shall be one of the following types or a combination thereof: (i) Pressure-sensitive body bars. (10) Air controlling equipment. (v) For cutting-off wheels larger than 16 inches diameter and where speed does not exceed 14,200 surface feet per minute, safety guards as specified in Figures O-27 and O-28, and in Table O-1 shall be used. Where guard is exposed to contact with moving equipment, additional strength may be necessary. When required by paragraph (c)(5) of this section, the control system shall be constructed so that a failure within the system does not prevent the normal stopping action from being applied to the press when required, but does prevent initiation of a successive stroke until the failure is corrected. (4) Pulley speeds. 1910.269 Electric power generation, transmission, and distribution. 1910.145 Specifications for accident prevention signs and tags. This is known as the Ring Test. Such flanges shall be at least one-fourth the wheel diameter. 49 CFR 172.101 Higher voltages that may be necessary for operation of machine or control mechanisms shall be isolated from any control mechanism handled by the operator, but motor starters with integral Start-Stop buttons may utilize line voltage control. Appendix C to Subpart I of Part 1910Personal Fall Protection Systems Non-Mandatory Guidelines (2) Where an exhaust system is used, the guards shall form part or all of the exhaust hood and shall be constructed of metal of a thickness not less than that specified in paragraph (h)(1) of this section. Saws to which gum has adhered on the sides shall be immediately cleaned. The spreader shall be made of hard tempered steel, or its equivalent, and shall be thinner than the saw kerf. (ix) If foot control is provided, the selection method between hand and foot control shall be separate from the stroking selector and shall be designed so that the selection may be supervised by the employer. The regulations listed in OSHA 1910.145 cover a variety of aspects of signs and tags. No extra microswitches or interlocking sensors would be required. You are using an unsupported browser. 1910.1012 Ethyleneimine. here. (vi) For thread grinding wheels not exceeding 1 inch in thickness cast iron or malleable iron safety guards as specified in Figures O-36 and O-37, and in Table O-9 shall be used. D. Similarity analysis may be used in lieu of tests where it can be shown that the article is similar in design, manufacturing process, and quality control to another article that was previously certified/validated in accordance with equivalent or more stringent criteria. 1910.332 Training. (4) If there is a counterweight, one of the following or equivalent means shall be used to prevent its dropping: (i) It shall be bolted to the bar by means of a bolt passing through both bar and counterweight; (ii) A bolt shall be put through the extreme end of the bar; (iii) Where the counterweight does not encircle the bar, a safety chain shall be attached to it; (iv) Other types of counterweights shall be suspended by chain or wire rope and shall travel in a pipe or other suitable enclosure wherever they might fall and cause injury. and 2. for the combined position. The requirements of this paragraph are also applicable to sliding cutoff saws mounted above the table. All Conveyors - Safety Section Refer to OSHA 1910.132 (Personal Prot. (iii) If the cone is located less than 3 feet from the floor or working platform, the cone pulley and belt shall be guarded to a height of 3 feet regardless of whether the belt is endless or laced with rawhide. (ii) The relevant requirements of paragraphs (a) through (g) of this section also shall apply to all presses used in the PSDI mode of operation, whether or not cross referenced in this paragraph (h). All trip and emergency switches shall not be of the automatically resetting type, but shall require manual resetting. It shall be accessible and shall operate readily on contact. Dimensions of such adaptor flanges shall never be less than indicated. [39 FR 23502, June 27, 1974, as amended at 43 FR 49750, Oct. 24, 1978; 49 FR 5323, Feb. 10, 1984; 61 FR 9240, Mar. 1910.1030 Bloodborne pathogens. A controlled clearance between the wheel hole and the machine spindle (or wheel sleeves or adaptors) is essential to avoid excessive pressure from mounting and spindle expansion. When flywheel extends into pit or is within 12 inches of floor, a standard toeboard shall also be provided; When the upper rim of flywheel protrudes through a working floor, it shall be entirely enclosed or surrounded by a guardrail and toeboard. The clearance between the edge of the rear table and the cutter head shall be not more than one-eighth inch. The validation organization shall notify the appropriate product manufacturer(s) of any reports from employers of point of operation injuries which occur while a press is operated in a PSDI mode. (vi) Electrical clutch/brake control circuits shall incorporate features to minimize the possibility of an unintended stroke in the event of the failure of a control component to function properly, including relays, limit switches, and static output circuits. guide. Belts which of necessity must be shifted by hand and belts within seven (7) feet of the floor or working platform which are not guarded in accordance with this section shall not be fastened with metal in any case, nor with any other fastening which by construction or wear will constitute an accident hazard. 1910.1018 Inorganic arsenic. 1910.137 Electrical protective equipment. Mines. (ii) All metal should be free from burrs and sharp edges. Similarly, only presses with a configuration such that a person's body cannot completely enter the bed area are approved for PSDI. The validation organization and validating laboratory shall have adequate administrative and technical staffs to conduct the validation of the certification of PSDI safety systems. When frequent oiling must be done, openings with hinged or sliding self-closing covers shall be provided. the hierarchy of the document. In powerplants only the lower run of the belt need be guarded. (i) Point of operation devices shall protect the operator by: (a) Preventing and/or stopping normal stroking of the press if the operator's hands are inadvertently placed in the point of operation; or, (b) Preventing the operator from inadvertently reaching into the point of operation, or withdrawing his hands if they are inadvertently located in the point of operation, as the dies close; or, (c) Preventing the operator from inadvertently reaching into the point of operation at all times; or, (e) Requiring application of both of the operator's hands to machine operating controls and locating such controls at such a safety distance from the point of operation that the slide completes the downward travel or stops before the operator can reach into the point of operation with his hands; or, (f) Enclosing the point of operation before a press stroke can be initiated, and maintaining this closed condition until the motion of the slide had ceased; or. (1) All portions of the saw blade shall be enclosed or guarded, except for the working portion of the blade between the bottom of the guide rolls and the table. Ample room for cleaning machines, handling material, work pieces, and scrap shall also be provided. All drip cups and pans shall be securely fastened. 1910.134 Respiratory protection. [39 FR 23502, June 27, 1974, as amended at 39 FR 41846, Dec. 3, 1974; 40 FR 3982, Jan. 27, 1975; 43 FR 49750, Oct. 24, 1978; 45 FR 8594, Feb. 8, 1980; 49 FR 18295, Apr. (1) Billet shears. (b) Attachments shall be adjusted to prevent the operator from reaching into the point of operation or to withdraw the operator's hands from the point of operation before the dies close. If the conveyor runs overhead, precautions must be taken to prevent injuries from materials that may fall from above. The guarding device shall be in conformity with any appropriate standards therefor, or, in the absence of applicable specific standards, shall be so designed and constructed as to prevent the operator from having any part of his body in the danger zone during the operating cycle. Guarding of clutches, cutoff couplings, and clutch pulleys -. 1910.1029 Coke oven emissions. These tests shall specify the acceptable tolerance band sufficient to assure that tolerance build-up will not render the safety distance unsafe. The employer shall evaluate and test the PSDI system installation, shall submit to the OSHA-recognized third-party validation organization the necessary supporting documentation, and shall certify that the requirements of 1910.217(a) through (h) and this appendix A have been met and that the installation is proper. (See Figures O-10 and O-11 and subparagraph (9) of this paragraph. (13) Whenever veneer slicers or rotary veneer-cutting machines have been shutdown for the purpose of inserting logs or to make adjustments, operators shall make sure that machine is clear and other workmen are not in a hazardous position before starting the machine. (7) Feeder attachments shall have the feed rolls or other moving parts so covered or guarded as to protect the operator from hazardous points. If you need more than just a PowerPoint, be sure to hop over to . In addition when unthreaded hole wheels are specified the inside flat, K dimension, shall be large enough to accommodate a suitable flange. (iv) A PSDI set-up/reset means shall be provided which requires an overt action by the operator, in addition to PSDI mode selection, before operation of the press by means of PSDI can be started. The various openings are such that for average size hands an operator's fingers won't reach the point of operation. Where a disk is used, the keys or other dangerous projections not covered by disk shall be cut off or covered. If belt is eight (8) inches or more in width. Inspection shall be made of belts, lacings, and fasteners and such equipment kept in good repair. above floor level. All drip cups and pans shall be securely fastened. For compliance with these requirements, the average value of the stopping time, Ts, shall be the arithmetic mean of at least 25 stops for each stop angle initiation measured with the brake and/or clutch unused, 50 percent worn, and 90 percent worn. 553. (iii) A fixed barrier guard shall be attached securely to the frame of the press or to the bolster plate. (9) Repairs and maintenance. It is recommended that old installations be changed to conform to this rule. The timer shall be manually adjustable, to a maximum time of 30 seconds. 1910.1052 Methylene chloride. Allow OSHA to conduct unscheduled reviews or on-site audits of it or the validating laboratories on matters relevant to PSDI, and cooperate in the conduct of these reviews and audits; 2. Overhead-rope and chain-drive guard construction shall conform to the rules for overhead-belt guard. (1) Each machine shall be so constructed as to be free from sensible vibration when the largest size tool is mounted and run idle at full speed. (v) The PSDI mode of operation shall be used only for normal production operations. 1910.165 Employee alarm systems. It shall be of sufficient width to provide adequate stiffness or rigidity to resist any reasonable side thrust or blow tending to bend or throw it out of position. The test specifications and procedures shall be made available upon request to the validation organization. (e) The safety distance (Ds) from the sensing field to the point of operation shall be greater than the distance determined by the following formula: Ds = minimum safety distance (inches); 63 inches/second = hand speed constant; Ts = stopping time of the press measured at approximately 90 position of crankshaft rotation (seconds). If the press has a slide counterbalance system, it is important that the counterbalance be adjusted correctly for upper die weight according to the manufacturer's instructions. (c) The device shall be constructed so that a failure within the system does not prevent the normal stopping action from being applied to the press when required, but does prevent the initiation of a successive stroke until the failure is corrected. (11) The frames and all exposed, noncurrent-carrying metal parts of portable electric woodworking machinery operated at more than 90 volts to ground shall be grounded and other portable motors driving electric tools which are held in the hand while being operated shall be grounded if they operate at more than 90 volts to ground. They are reinforced, organic bonded, offset hub type wheels, usually 16 inches diameter and larger, specially designed for use on cutting-off machines where mounting nut or outer flange interference cannot be tolerated. Wheels bonded with clay, glass, porcelain or related ceramic materials are characterized as vitrified bonded wheels.